.header {
  position: relative;
  background: #131721;
  .home_header_bgc {
    position: fixed;
    background: url(https://static.hzddyy.com/saas_static_files_/n_jZLZ0FSz6ZKsvmUGGnS_JXw9ZcE8Y-a5hb8bCnZpk.png);
    height: 816px;
    width: 100vw;
    background-size: 100% 100%;
    z-index: 0;
  }
  .fixed {
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
    background: #131721;
  }
}
